Plant Biology

Organic matter, produced in the leaves, must be transported to the consuming sources- via the phloem.

Salts and water are absorbed by the roots and transported into the plant by the xylem.

Pollination: transport of the pollen grain from one plant to the pistil of another.

After ________, the ovary becomes a fruit, and the ovules become seeds.

Gametes depend on water for transport.

________ (forming the embryo and the endosperm)

Spores are carried by the wind and originate from the prothallium (gametophyte), Gametes depend on water to be transported.

The stomas open when there is light and water ________.

The plant is the ________, and the strobiles produce microspores (forms the pollen grain) or megaspores (forms the embryo sac)

In the ________, there is the pollen sac, where the spores are formed by meiosis, generating pollen grains.

The phloem is an important plant conducting tissue.

The endosperm (3n) is the nutritional reserve of the embryo.

The removal of a ring- in the bark of the tree- interrupts the ________ of the phloem and causes the death of the cells due to lack of nutrients.

Root pressure pushes the sap upward.

Transpiration occurs in any part of the plant that is above ground.

They are the first spermatophytes- with leaves specialized in producing ________ (sporophylls, gathered in strobiles)

After ________, the ovule becomes a seed (embryo + nutritive tissue + tegument)

transport of the pollen grain from one plant to the pistil of another

interrupts the flow of the phloem and causes the death of the cells due to lack of nutrients